Personal digital assistant



FIG. 1 is a front perspective view thereof;

FIG. 2 is a front side view thereof;

FIG. 3 is a rear side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plane view thereof; and,

FIG. 7 is a bottom plane view thereof. 

The ornamental design for a personal digital assistant, as shown and described. 